18731419

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{1741}}^1$

素因数の和:1830

約数の個数: 16

約数和(自身を含む): 22576320

約数和(自身を除く): 3844901

約数列:

[1, 7, 29, 53, 203, 371, 1537, 1741, 10759, 12187, 50489, 92273, 353423, 645911, 2675917, 18731419]

約数ペア:

[(1, 18731419), (7, 2675917), (29, 645911), (53, 353423), (203, 92273), (371, 50489), (1537, 12187), (1741, 10759)]